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Code Issues Releases Wiki Activity

Fix multi-column index scans in internal pages.

This commit is contained in:
Vadim B. Mikheev 1997-10-22 19:02:52 +00:00
parent 8f4559d0e1
commit bd305f3f06
1 changed files with 9 additions and 3 deletions
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12
src/backend/access/nbtree/nbtsearch.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtsearch.c,v 1.26 1997/09/08 20:54:27 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtsearch.c,v 1.27 1997/10/22 19:02:52 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@ -197,8 +197,12 @@ _bt_moveright(Relation rel,
* if number of attrs > keysize. Example: (2,0) - last items
* on this page, (2,1) - first item on next page (hikey), our
* scankey is x = 2. Scankey == (2,1) because of we compare
* first attrs only, but we shouldn't to move right of here. -
* vadim 04/15/97
* first attrs only, but we shouldn't to move right of here.
* - vadim 04/15/97
*
* Also, if this page is not LEAF one (and # of attrs > keysize)
* then we can't move too.
* - vadim 10/22/97
*/
if (_bt_skeycmp(rel, keysz, scankey, page, hikey,
@ -227,6 +231,8 @@ _bt_moveright(Relation rel,
elog(FATAL, "btree: unexpected greater last item");
/* move right */
}
else if (!(opaque->btpo_flags & BTP_LEAF))
break;
else if (_bt_skeycmp(rel, keysz, scankey, page,
PageGetItemId(page, offmax),
BTLessEqualStrategyNumber))